Historical on-time performance
Birmingham to Baltimore
682 miData through May 2026Source: US DOT · BTS
Flights on BHM–BWI arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled3.8%of scheduled flights
based on 132 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time67%Medianon timep9050 minCancel3.8%Flights132
Why flights run late
Delay causes
- Airline6%
- Weather1%
- Air traffic (NAS)32%
- Late aircraft61%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather80%
- Air traffic (NAS)20%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 5 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BHM → BWI
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 93% on time.
- Mornings93% on time · p90 5 min · 119 flights · limited
- Middays84% on time · p90 25 min · 295 flights
- Afternoons80% on time · p90 30 min · 429 flights
- Evenings66% on time · p90 60 min · 176 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 87% on time.
- Tuesdays87% on time · p90 20 min · 156 flights · limited
- Thursdays85% on time · p90 20 min · 157 flights · limited
- Wednesdays85% on time · p90 25 min · 156 flights · limited
- Mondays77% on time · p90 25 min · 156 flights · limited
- Sundays74% on time · p90 45 min · 169 flights · limited
- Fridays74% on time · p90 40 min · 157 flights · limited
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